2101002201021 has 8 divisors (see below), whose sum is σ = 2809139434560. Its totient is φ = 1396766550752.

The previous prime is 2101002200977. The next prime is 2101002201041. The reversal of 2101002201021 is 1201022001012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2101002201021 - 2¹⁹ = 2101001676733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2101002200988 and 2101002201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101002201041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 975394560 + ... + 975396713.

It is an arithmetic number, because the mean of its divisors is an integer number (351142429320).

Almost surely, 2^{2101002201021} is an apocalyptic number.

It is an amenable number.

2101002201021 is a deficient number, since it is larger than the sum of its proper divisors (708137233539).

2101002201021 is a wasteful number, since it uses less digits than its factorization.

2101002201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950791635.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2101002201021 its reverse (1201022001012), we get a palindrome (3302024202033).

The spelling of 2101002201021 in words is "two trillion, one hundred one billion, two million, two hundred one thousand, twenty-one".